West Nile virus spreads despite spraying

Health officials said the West Nile virus is spreading not only in Harris County, but in many surrounding counties.

Nineteen ZIP codes across Harris County were sprayed Tuesday night.

According to Fort Bend County Health and Human Services, a man between 55 and 74 years old was recently released from the hospital after contracting the virus. He was the third case for Fort Bend County. A woman from Katy between 55 and 74 years old was listed as the fourth case in Fort Bend on Wednesday.

Chambers County confirmed its first human case of the West Nile virus.

In Houston, combined with Harris County, there have been 37 cases with three deaths.

Researchers said the mosquitoes would be around at least until the end of October. So, to keep yourself and loved ones safe, follow the 4 Ds:

Dusk and dawn have the highest mosquito activity, so those are the times you should stay inside.

Dress in long sleeves, loose and light-colored clothing.

Drain any standing water on your property.

Defend yourself with insect repellent containing DEET.

There have been almost 1,600 cases of West Nile virus in the U.S. this year, according to the Centers for Disease Control. Half of those cases are in Texas.